Street-sewee



UNITED` STATESPATENT OFFIOE.

WILLARD DAY, OF BROOKLYN, NEW YORK.

STREET-SEWER..

Specification of Letters PatentNo. 8,703, dated February 3, 1852.

To all whom it may concern:

` Be it known that I, VVILLARD DAY, of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Self-Oleaning Culvert and Basin; and I do hereby declare that the following is afull, clear, and exact description of theM i construction and operation of the same,

reference being had to the annexed drawings, making a part of this specification, in which i Figure l is a longitudinal vertical section of my improvement the sewer being cut transversely. Fig. 2 `is a longitudinal vertical section of a culvert and basin such as are at present used, drawn for the purpose of showing distinctly the difference between my improved plan and the old method.

The nature of my invention consists in placing the basin at the lower end of the culvert and adjoining the sewer, in combination with a single manhole so placed as to give access to both basin and sewer; the side of the basin that adjoins the sewer is inclined and the culvert is also inclined so that the force or momentum which the water acquires in descending the culvert is sufficient to carry sediment, gravel and other matter which may pass into the culvert with the water, up the inclined side of the basin and into the sewer, thus preventing the lodgment of improper matter in the basin and the consequent illing up thereof. Directly over the basin is placed the manhole which passes up perpendicularly into the street; in case the basin should become accidentally clogged by sticks or such like material a person can descend into the basin through the manhole, remove the obstruction and clean the basin, placing the matter which had accumulated in the basin in the sewer through which it would be carried by the first rain or freshet. By this arrangement the iilth is not exposed in the street and the unwholesome stench arising -from it is consequently avoided. To enable others skilled in the art to construct a culvert and basin on my improved plan, I will proceed to describe more particularly the manner in which it is constructed.

A Fig. l, is the street, B is the culvert, inclined as represented. C is the basin at the lower end of the culvert communicating with the sewer; (a) is the inclined side of the basin, D is the sewer, E is the manhole directly over the basin C and passing up- `ward linto the street A, (b) is the opening` `than the passage (b) whichleads into the sewer, see Fig. l, the 'dotted line (c) indicating the wateriline; now the fact of the basin being lower than the passage which leads into the sewer renders it evident that dirt and other matter which passes down the culvert with the water will eventually fill it unless duly provided against. To guard against this, I place my basin, C, Fig. l at the lower end of the'culvert B, and adjoining the sewer, D, the side (a) of the basin is inclined somewhat less however than the culvert. Now the water and matter which may be mixed with it in passing down the culvert will acquire sufficient momentum or force to pass up the inclined side (a) and fall into the sewer preventing the accumulation of sediment or matter in the basin O.

By referring to Fig. 2, the culvert and basin as used at present will be seen. A is the street, B is the culvert, C is the basin placed at the upper part of the culvert and directly under a manhole E communicating with the sidewalk. It will be readily seen by the drawings that the water from the street as it passes down the manhole lE can not carry all the sediment and matter linto the culvert B. Some of it willnecessarily collect in the basin, as the water has not suiiicient force, and the quick or sudden turn as seen by the arrow (e) which the water makes to pass into the culvert creates a reaction or current which serves to throw the Iheavier particles, gravel and such like toward the bottom of the basin. The basin O as arranged in Fig. 2 requires cleaning frequently which is done by removing the cap stone (d) on the to-p of the manhole E and drawing the matter which the basin contains into the street causing not only a disagreeble but an unwholesome atmosphere. This dificulty I have entirely obviated for if the basin C, Fig. l, should ever lill with matter in consequence of sticks or such like material passing into the culvert, B, which at times may possibly happen, a perso-n by descending into the basin through the manhole E can empty the contents directly into the sewer D, as will readily be seen without creating any nuisance or aifecting the atmos-V phere in the street.

If cases should occur when it would be necessary to clean the sewers in consequence of a great accumulation of matter in them, the matter may be deposited in boxes and drawn up through the manhole E by means of a Windlass. This may be done in a rapid manner as I can make the manhole of ample size and have it sutliciently large at the bottom for two or more men to work.

In the present arrangement the man hole F, Fig. 2 connecting with the sewer D is necessarily small as it passes from the top.

sary to have a manhole E to every basin for instance at the four corners where two streets cross. A manhole at one of the corners is sufficient because a man with a lantern may pass through the manhole and into the sewer at (Z9) and clean the basins at the other three corners. The dotted lines (e) Fig. 1, would be the top or covering of the basin C were there no manhole.

The same materials are used in constructing my culverts and basins as are used in basin and sewer.

WILLARD DAY.A Witnesses:

S. H. WALES, A. R. HAIGHT. 

